ADU & Garage Conversions in University Park, California: Smart Solutions for Growing Families
We specialize in transforming properties in University Park, California, by creating efficient accessory dwelling units (ADUs) and converting garages into livable spaces. In this compact 1.17-square-mile neighborhood in South Los Angeles with over 25,000 residents, these projects add value, increase functional living areas, and meet the growing demand for flexible housing options in one of LA's most densely populated areas (over 20,217 people per square mile).
As a fully licensed and insured general contractor, we've built our reputation on quality craftsmanship and transparent client communication. Our company maintains all required contractor licenses, comprehensive liability insurance, and workers' compensation coverage, ensuring your project is protected from start to finish. Using premium, energy-efficient materials that withstand University Park's Mediterranean climate, we deliver durable living spaces designed for comfort year-round.
Whether you want to create a rental unit in an area where 92.2% of residents are renters, expand your living space, or adapt your garage, we guide you through every step with clear communication and expert craftsmanship to deliver results that last through Southern California's 284 sunny days per year.

What Are ADU & Garage Conversions?
We focus on creating additional living spaces through ADU and garage conversions to meet the growing housing needs in University Park. These projects address space limitations by transforming existing structures or adding new ones that comply with local regulations in this historic neighborhood developed alongside USC in the late 19th century.
Types of ADUs and Garage Conversions
An ADU (Accessory Dwelling Unit) in University Park can be either attached or detached from the main house. Attached ADUs share at least one wall with the main residence, while detached ADUs stand alone on the property. Garage conversions turn an existing garage into a fully livable space, often without requiring new construction—an attractive option in an area where property values have been steadily rising.
Our services include full design and construction of attached ADUs, detached ADUs, and garage conversion ADUs. For each project, we source commercial-grade materials from trusted suppliers, ensuring durability and energy efficiency. Our team specializes in conversions that preserve historical character while implementing modern amenities.
Differences Between Attached and Detached Options
Attached ADUs share infrastructure and access with the main home, which can simplify plumbing and electrical work. They often cost less due to fewer materials and shorter construction times—an important consideration in a neighborhood where the median household income is around $16,533.
Detached ADUs, including those converted from garages, require separate utilities and entrances, offering more independence and privacy. For both options, we use commercial-grade electrical systems, copper plumbing, and premium fixtures that meet or exceed local building standards. Our team's expertise in navigating permitting within this West Adams district neighborhood ensures compliance with regulations specific to historically significant areas.
Our Design and Planning Services
We focus on detailed design consultation, thorough architectural and structural engineering assessments, and clear project visualization combined with expert handling of permit applications. Our design team includes licensed architects with experience in historic preservation, essential for projects near University Park's two historic districts on the National Register of Historic Places.
Personalized Design Consultation
We start with a conversion design consultation tailored to your property and lifestyle. Our certified designers discuss your needs, budgets, and local zoning restrictions. This ensures the design fits the property and meets University Park's specific regulations, including any special considerations for properties near landmarks like the Shrine Auditorium.
Our design consultations include material selection, featuring premium options for flooring, fixtures, and finishes that balance aesthetics, durability, and cost. We provide samples of all materials and detailed specifications before construction begins, ensuring transparency throughout the process.
Architectural and Engineering Assessment
We provide a full architectural design and a structural engineering assessment to guarantee safety and compliance. Our team of licensed structural engineers analyzes existing structures, especially for garage conversions, identifying necessary reinforcements or modifications required to withstand Southern California's occasional seismic activity.
Each assessment includes soil testing, foundation evaluation, and comprehensive structural analyses, particularly important in this area served by the Metro E Line where vibrations may affect building stability. Our engineering plans incorporate steel reinforcements and foundation upgrades that exceed minimum code requirements.

Systems Installation and Compliance
We focus on precise installations and strict adherence to safety and accessibility standards. Every system is integrated to ensure functionality and regulatory compliance, particularly in ADU and garage conversions designed to withstand mild but occasional rain from November to March, when Los Angeles receives most of its annual 14.93 inches of precipitation.
Electrical, Plumbing, and HVAC Systems
Our electrical system installations include commercial-grade wiring, panels, and fixtures installed by certified electricians. We use copper wiring throughout and install energy-efficient lighting systems that reduce long-term utility costs. Each electrical system is designed with capacity for future needs and tested for safety and compliance.
For plumbing systems, we install only copper and PEX piping with professional-grade fixtures and water-saving devices that meet California's strict efficiency standards. Our systems include proper venting, drainage, and water pressure regulation to ensure reliable performance.
The HVAC systems we install are selected for energy efficiency and sized precisely for each space. We specialize in mini-split and ductless systems that provide zoned comfort without extensive ductwork—ideal for University Park's climate, where summer temperatures can occasionally exceed 90°F.
Fire Safety and Security Systems
Fire safety is a priority in all conversions. We install interconnected smoke detectors, carbon monoxide alarms, and fire-resistant materials that exceed California building codes. Our team ensures proper emergency egress and fire-resistant construction techniques throughout each project.
Security systems installation is coordinated with fire safety efforts. We integrate wiring for security during construction, allowing seamless installation of alarms, cameras, and access controls. These features provide peace of mind in this urban neighborhood near USC.
Types of ADU Builds and Conversion Options
We offer a range of ADU builds and conversions that address different needs and property types in University Park. Each option varies in construction style, installation process, and potential uses such as rental units, guest suites, or in-law units in this educationally rich community that hosts USC, Mount St. Mary's University, and Hebrew Union College.
Modular, Prefab, and Shipping Container ADUs
Modular and prefab ADUs provide a streamlined approach to ADU installation. We work with certified manufacturers who use quality materials and precision construction methods. These units feature steel framing, commercial-grade fixtures, and high-performance insulation that maintains comfort in University Park's Mediterranean climate.
Shipping container ADUs represent a durable and flexible option. We transform industrial-grade shipping containers using commercial construction standards, adding proper insulation, ventilation, and moisture barriers. These conversions include premium windows and doors that maintain the container's structural integrity while creating comfortable living spaces.
Junior ADUs and Basement Conversions
Junior ADUs are smaller units, usually under 500 square feet, attached or contained within the primary residence. For these projects, we focus on space-efficient designs with multi-functional features and built-in storage. Our team specializes in maximizing natural light and ventilation in compact spaces.
Basement ADU conversions entail transforming unused basement areas into functional living spaces. We implement comprehensive waterproofing systems, proper drainage solutions, and moisture control techniques that protect against the occasional heavy rains in Los Angeles. These conversions include egress windows and emergency exits that exceed safety standards.
Garage Bedroom, Office, and Rental Units
Converting a garage into a bedroom, office, or rental unit can add value and versatility. Our garage conversions include raising floors, insulating walls and ceilings with high-performance materials, and installing proper foundations that meet California's seismic requirements. We upgrade electrical systems to support modern needs while maintaining the architectural character of the original structure.
Why Choose Refined ADU Builder & Garage Conversions
We provide comprehensive support from initial consultation through construction, ensuring smooth and efficient completion of your project. Our focus is on tailored solutions that convert your garage or property into functional living spaces with minimal disruption in this historic yet evolving neighborhood.
Turnkey Solutions and Free Consultation
We offer a free consultation to discuss your specific needs and goals. This includes site evaluation, preliminary designs, and detailed cost estimates. Our transparent pricing structure eliminates surprises, and we provide written warranties on all workmanship and materials.
Our turnkey ADU services handle every step: permits, design, construction, and finishing. As a licensed and insured contractor, we manage all subcontractors and inspections, ensuring quality control throughout the process. Our project managers provide weekly updates and remain accessible for questions at any stage of construction.